I just installed the Sanger spec Bennett tab on my 215. How far do the actuators extend? Mine is only trimming down maybe 3/4in off square of the Keel. Is this as far as they travel down.?I set them up at 5/8in negative as per the instructions.

The range of motion is just over one inch. Mine is set to go down 1/4" from level with the flat delta pad on the bottom of the hull. The rest of the motion is up. I think mine could go down a bit more when fully extended as the top portion of the up motion makes little difference when running.
Most of my motion range is up from level with the bottom of the boat.